Finding the Fourth Proportional to 8,511,258.63, 11,745,519.71 and 4,643,777.55
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Solution
The fourth proportional to 8,511,258.63, 11,745,519.71 and 4,643,777.55 is: 6,408,403.63
Step by Step Solution
- Step 1: Write the proportion equation
8,511,258.63 : 11,745,519.71 = 4,643,777.55 : x - Step 2: Convert to fraction form
8,511,258.63/11,745,519.71 = 4,643,777.55/x - Step 3: Cross multiply
8,511,258.63x = 11,745,519.71 × 4,643,777.55 - Step 4: Simplify right side
8,511,258.63x = 54,543,580,719,161.62 - Step 5: Solve for x
x = 54,543,580,719,161.62/8,511,258.63 - Step 6: Final answer
x = 6,408,403.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.